Roller shade



Jan. 7, 1936 H; H. KOLLE'R ET AL 2,027,107 Y ROLLER SHADE A Filed e bQzo, 1935 ,2 Sheets-Sheet 1 y Y inventor jjfliizr Attorney i Patented Jan. 7,1936 1 noLLEn sna s Herman K. Keller and Wilfred G. Dery Amsterdam, N. Y.

Application February so, 19 5, Serial No. 1.425

* 1 Claim. (01. 155-11 This invention relates to improvements in roller shades, the general object of the invention being to improve the devices shown in a patent granted to us on October 16, 1934, No. 1,976,884 and Patent No, 1,917,449 dated July 11, 1933 granted to Herman H. Koller. j

This invention also consists in certain other features'of construction and in the combination and arrangement of several parts, to be hereinafter fully described, illustrated In theaccompanying drawings and specifically pointed out in the appended claim. I

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Fig. 1 is a fragmentary front view of the 111- vention with parts broken away.

. Fig. 2 is a vertical sectional viewthrough Fig. 1.

Fig. 3 is a fragmentary elevation showing how the spring for holding a slat in raisedposition, is

arranged. a

Fig. 4 is a. fragmentary perspective view showing how the chain engages a channel guide.

Fig. 5 is aperspective view of one ofthe slats. Fig. 6 is atransverse sectional viewthrough the upper rolled end of a slat, and the channel guide and the chain with the rod in elevation.

-In these drawings, the numeral I indicates" a pair of vertically arranged channel members suitably placed in the side members, of a window frame or the like andfthe numeral! indicates a pair of supporting plates which may contact or be formed with the upper ends 'of'the bights of the membersl and these plates may also besupported in the upperportion of a window frame against the side members thereof. These plates rotatably support a shaft 3 ,which has a drum 4 attached toeach end, part thereof. and a chain Sis connected to eachdrum, the chain operate ing in theguide members I as more clearly shown in Fig. 4. These chains have the vertically spaced rods ,6 attached to certain links thereof and each rod supportsa slat 'Iwhich may have its upper edge rolled asshown at I aroundthe rod. Each slat is of slightly arcuate shape withits I concave face uppermost, when the slats are in open position so that the slats can readily be rolled upon the drumsjwith the chains. The second shaft 9 is rotatably supported by the plates 2 in front and slightly below the shaft 3 and these two shafts are connected together adjacent one end by the gears III. A strap II has one end connected with the shaft 9 and its other end is connected to a spring roller I2 at the lower end 1 of one side of the frame so that when the strap I I is pulled upon in a downward direction, it will rotate the shaft 9 and the strap will be rolled upon the shaft I2 and this moving of the shaft 9 will be communicated by the gears to the shaft I and as the shaft 8 rotates in an opposite direc-,

tion from theshaft I, the slats and chains will 5 be rolled upon the drum 4. A spring I: is connected with the upper slat and tends to hold the same in open position and if desired springs similar to It can be associated with the other slats.

A frame I! composed of a pair of vertical bars 10 I and a lower cross piece I! is supported for swinging movement from the members I by the links H the bars engaging the free edges of the slats and said frame is actuatedby an arcuate-shaped lever I8 having its inner end pivoted to the cross piece 15 I6, part of the lever passing through a hole in the stationary lower slat I and through a guide;

I9 on the window sill, the edges of the lever Ia.

[being notched so that the'guide willhold the lever in adjusted position and the slots or notches go in the member I will fit over the lever when the blind is in lowered position. Thus by pulling outwardly the lever I I, the frame I B will be, lowered and as part of the frame bears against the slats, this'movement of the frame will lower as the slats to closed or partly closed position. It is thought from the foregoing description that the advantages and novel features of theinvention will be readily apparent.

- It is to be understood that changes may be ao made in the construction and in the combination and arrangement of the several parts provided that such changesfall within the scope of the appended claim. I s

We claim: 9 Ina shade structure of the class described, a transversely arranged shaftrotatably supported, drums on the shaft adjacent the ends thereof, a

, chain havingone end connected to each drum, arcuate-shaped slats. a rod connected to one edge 40 of each slat, the ends of the rods being connected I to spacedlinks of the chains, guideways for the chains, a second shaft rotatably supported, gears connecting the two shaftstogether, and a strap connected to the second shaft and so wound on the second shaft that a pull upon the strap will :cause the gears-to rotate the first shaft in an opposite direction from the second shaft to wind the chains and slats upon the drums, a frame having portions contactingthefree edges of the slats,means for supporting the frame for swinging movement, and a manually-operated lever connected to the lower "end of the frame for swinging the frame and holding it in adjusted position.

HERMAN H. KOLLER.

, 'WILFRED G. DER.Y. 

